Interpret a UUID

Back

UUID:
Your input:                      a1b52f35-bd01-8304-87ea-5ce32bd83b97

Various notations:

URN:                             urn:uuid:a1b52f35-bd01-8304-87ea-5ce32bd83b97
URI:                             uuid:a1b52f35-bd01-8304-87ea-5ce32bd83b97
Microsoft GUID syntax:           {A1B52F35-BD01-8304-87EA-5CE32BD83B97}
C++ struct syntax:               { 0xa1b52f35, 0xbd01, 0x8304, { 0x87, 0xea, 0x5c, 0xe3, 0x2b, 0xd8, 0x3b, 0x97 } }

As OID (ISO/ITU-T 128 bits):     2.25.214946470583604738718440581826317138839
As OID (Microsoft):              1.2.840.113556.1.8000.2554.41397.12085.48385.33540.34794.6087467.14171031
As OID (Waterjuice 2x64 bits):   1.3.6.1.4.1.54392.1.11652271518741791492.9793742470433487767
As OID (Waterjuice 4x32 bits):   1.3.6.1.4.1.54392.2.2713005877.3170992900.2280283363.735591319
As OID (Waterjuice 8x16 bits):   1.3.6.1.4.1.54392.3.41397.12085.48385.33540.34794.23779.11224.15255

Interpretation of the UUID:

Variant:                         [0b10_] RFC 9562 (Davis-Peabody-Leach)
Version:                         [0x8] Custom implementation
Custom data:                     [0xa1b52f35bd0130407ea5ce32bd83b97]
Custom data block1 (32 bit):     [0xa1b52f35]
Custom data block2 (16 bit):     [0xbd01]
Custom data block3 (12 bit):     [0x304]
Custom data block4 (14 bit):     [0x07ea]
Custom data block5 (48 bit):     [0x5ce32bd83b97]

Interpretation of HickelSOFT "SQL Server Sortable Custom UUID", Version 3

Random 16 bits:                  [0xa1b5] 0b1010000110110101
Milliseconds:                    [0x2f] 184 (deviation -2ms..2ms)
Seconds:                         [0x35] 53
Minute of day:                   [0x01bd] 445 (07:24)
Day of year:                     [0x043] 67 (Day=8, Month=3)
Unused 2 bits:                   [0] 0b00
Year:                            [0x7ea] 2026
Signature:                       [0x5ce32bd83b97] HickelSOFT "SQL Server Sortable Custom UUID", Version 3 (very likely)
UTC Date Time:                   2026-03-08 07:24:53'184 (deviation -2ms..2ms)